com.nominanuda.springmvc.HttpEntityView.java Source code

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Here is the source code for com.nominanuda.springmvc.HttpEntityView.java

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/*
 * Copyright 2008-2011 the original author or authors.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.nominanuda.springmvc;

import java.io.InputStream;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.http.Header;
import org.apache.http.HttpEntity;
import org.springframework.web.servlet.View;

import com.nominanuda.io.IOHelper;
import com.nominanuda.web.http.HttpProtocol;

public class HttpEntityView implements View, HttpProtocol {
    private static final IOHelper io = new IOHelper();
    private final HttpEntity entity;

    public HttpEntityView(HttpEntity entity) {
        this.entity = entity;
    }

    public String getContentType() {
        Header ct = entity.getContentType();
        return ct == null ? CT_APPLICATION_OCTET_STREAM : ct.getValue();
    }

    public void render(Map<String, ?> model, HttpServletRequest request, HttpServletResponse response)
            throws Exception {
        response.setContentType(getContentType());
        InputStream is = entity.getContent();
        byte[] b = io.readAndClose(is);
        response.setContentLength(b.length);
        response.getOutputStream().write(b);
    }

}